baber/WOPTO huggingface dataset:
Patent GB-681507-A (GB)
Title: Method of treating tocopherol material
IPC: C07D311/72
Filed: 1950-10-24
Abstract: The invention comprises compounds of the general formula <FORM:0681507/IV (b)/1> (wherein R represents hydrogen or an acyl group, X a formyl group and Y hydrogen, a methyl group or a formyl group), and the manufacture thereof by subjecting tocopherol material initially containing one or more aromatic hydrogen atoms in the benzenoid nucleus to formylation so as ultimately to replace at least one of said aromatic hydrogen atoms by a formyl group, and, if desired, subsequently esterifying the formylated material.  The formylation may be effected by condensation with hexamethylenetetramine (preferably in the presence of an acidic condensation catalyst and in the substantial absence of water, e.g. in solution in an organic solvent), followed by hydrolysis (e.g. with mineral acid), or by iminoalkylation with hydrogen cyanide and a hydrogen halide in the presence of a metal salt, and subsequent hydrolysis, or by reaction with a trihalomethane and an alkaline material, followed by hydrolysis, or by reaction with formaldehyde and hydrogen halide, and oxidation of the halomethyl group or groups so introduced.  Suitable starting materials are b -, g - and d -tocopherol or mixtures thereof, or concentrates containing them (e.g. from vegetable oils) from which any a -tocopherol present may first be separated.  The products, especially the esterified compounds, are useful as therapeutic agents, whilst on reduction of the formyl groups to methyl groups they yield compounds of enhanced vitamin E activity (see Specification 681,508).  In examples: (1) a concentrate containing a - and b -tocopherol is heated with hexamethylenetetramine in glacial acetic acid and the product is hydrolysed with hydrochloric acid; (2) a g -tocopherol concentrate is similarly treated, but using a mixture of acetic and formic acids in the first step; (3) d -tocopherol is condensed with hexamethylenetetramine as in (1) and the product hydrolysed with hydrochloric acid in isopropyl ether; (4) a g -tocopherol concentrate is iminoalkylated in ethereal solution by adding zinc cyanide and passing in dry hydrogen chloride, and the product is hydrolysed with hydrochloric acid; (5) a concentrate containing g - and d -tocopherol is similarly iminoalkylated, but using tetrachloroethane as solvent and with the addition of aluminium chloride, and the product is hydrolysed with sulphuric acid; (6)-(8) 5-formyl-g -tocopherol is esterified with acetic anhydride and pyridine or with benzoyl or palmitoyl chloride in ethylene chloride and pyridine; the stearic, oleic and myristic esters may be similarly prepared; (9) a g -tocopherol concentrate is refluxed with chloroform in dioxane in the presence of potassium hydroxide and the product is hydrolysed with sulphuric acid.  Lists of additional acidic catalysts and organic solvents for the condensation with hexamethylenetetramine are given.
Patent GB-1365402-A (GB)
Title: Hot water pump with a withdrawable shaft bearing
IPC: F04D29/04
Filed: 1972-06-02
Abstract: 1365402 Axial flow pumps MASCHINENFABRIK ANDRITZ A G 2 June 1972 [29 June 1971] 25851/72 Heading F1C The subject matter of the Specification is substantially the same as that of Specification 1365401 but the claims are concerned with the feature that the bottom shaft bearing (20) of the hot water pump can be withdrawn upwards through the shaft packing housing (9).
Patent GB-297084-A (GB)
Title: Process of manufacturing closing wedges for the grooves of dynamo electric machines
IPC: H02K3/493
Filed: 1928-09-10
Abstract: 297,084. Skoda Works, Pizen. Sept. 14, 1927, [Convention date]. Coils and conductors, securing in slots. A slot closing wedge for dynamo-electric machines is constructed from a sheet metal strip, preferably magnetic, which is bent into folds compressed in such a way that the folded faces are parallel with the laminae of the core, the folds being made on the broad sides of the wedge so that no additional stiffening is necessary. If the wedge is to have the section shown in Fig. 10 a strip of the form shown in Fig. 6, is employed, folded as in Fig. 9. Fig. 11 shows a wedge 1 in position with a locking wedge 2, and wrapped in sheet metal strips 3 to form a rigid unit. Insulation 4 is interposed between the composite wedge and the slot walls. Projections 10, Fig. 13, may be provided on the sheet metal wrapper 3 to engage with recesses in the wedges and slot walls so as to prevent displacement. The magnetic wedge may be formed with a pressed and milled groove to receive a locking wedge 13, Fig. 15. To reduce eddy currents in the magnetic wedge, the bights of the folds may be partly milled off. In Fig. 18, the magnetic and locking wedges are in one but separated by an insulating laver 18. According to the Specification as open to inspection under Sect. 91 (3) (a), the narrower sides of the wedge may converge in the longitudinal direction. This subject-matter does not appear in the Specification as accepted.
Patent GB-266021-A (GB)
Title: Improvements in collapsible tubes
IPC: B65D47/20
Filed: 1925-10-19
Abstract: 266,021. Mason, H. C. Oct. 19, 1925. Stoppers with valves.-Collapsable tubes having an exit opening d at the side of the neck are provided with a valve b, which opens automatically when pressure is applied to the tube, and closes when the pressure is relaxed. The tube is preferably closed at the outer end a<2>, between which and the valve is located a compression spring c, which presses the valve against a stop. Alternatively, a tension spring may be arranged below the valve, and secured, for example, to a bar extending across the tube. The edges of the opening d may be thinned down, so as to be left clean by the action of passing a brush across the opening. Means such as a pin passed through the neck, may be used to prevent unintentional movement of the valve. The Provisional Specification describes also a valve in the form of a flanged rubber fitting provided with a split, which opens when pressure is applied to the tube.
Patent GB-431744-A (GB)
Title: Improvements in or relating to fuel injection pumps for internal-combustion engines
IPC: C12G1/02
Filed: 1934-09-11
Abstract: 431,744. Fuel - - injection pumps. L'ORANGE, R., 130, Cannstatterstrasse, Feuerbach, Stuttgart, Germany. Sept. 11, 1934, No. 26075. Convention date, Sept. 26, 1933. [Class 102 (i)] In a fuel-injection pump the plunger A is reciprocated by a cam E and controls the suction port C. The effective stroke of the pump is controlled by adjusting the position of the cam in a direction substantially axial to the cylinder. The pinion F, secured to the cam E, meshes with the pinion L mounted co-axial with the fulcrum of the lever H to the end of which the cam E is journalled. The lever H is adjusted by the link J. The cam E may be of the oscillating type. Fig. 3 shows the pump plungers arranged around the axis of the driving shaft N and actuated by an axially acting cam E<11>. The cam may be adjusted axially of the shaft N.
Patent GB-173028-A (GB)
Title: Improvements in electrolytic cells, more especially intended for use in the production of the chlorates of the alkali metals
IPC: C25B9/17
Filed: 1920-09-10
Abstract: 173,028. Barker, J. T., and United Alkali Co., Ltd. Sept. 10, 1920. Chlorates, obtaining; electrodes; cells.-A cell particularly for use in the production of alkali chlorates is made of large superficial area for a given cubical capacity by increasing the height tor length or both at the expense of the width. The metal walls of the cell A are bare from a little below the normal level of the electrolyte B to a little above the bottom of the anodes E, other parts being protected by cement a, a<2>; the bare parts together with a cooling-coil F constitute the cathode. A temperature of 35 to 40 C. is maintained; little cooling-water is necessary in cold weather. Suitable internal dimensions for a cell to carry an average current of 1500 amperes are length 8 ft., height 4 ft., and width 15 inches, minimum dimensions for the same capacity being length 5ft., height 30 inches, and width 8 inches. For a 750-ampere cell the preferred dimensions are length 4 ft., height 44 inches, and width 15 inches and the minimum dimensions length and height both 30 inches and width 8 inches. The anodes E consist of cylindrical carbon rods impregnated for five or six inches down with paraffin wax or other material. They are supported by hard rubber pins e on a cover G of asbestos cement, and are provided at the bottom with glass or other distance pieces e<2>. The anodes are provided with screw terminals e<3> connected by flexible copper wires with a conducting bar J carried by wooden blocks j<2>. A glass overflow tube t is fitted through a rubber stopper s in the side of the cell. The cover G is provided at each end with holes (not shown) to receive earthenware or other pipes. 'The ends f of the coil F are protected above the liquid by cement a' and are connected to the rim D of the cell by copper bars L. An oval or undercut iron bar c is bolted round the rim to retain the cement covering a. The cell may be made of cast iron or of steel plate, 3/16 to  inch thick, with welded joints. Bichromates may be used to stimulate the production. Several cells may be worked in cascade with circulation of fresh liquor or returned mother-liquor.
Patent GB-853972-A (GB)
Title: Improvements in or relating to miners' safety lamps
IPC: F23Q7/08
Filed: 1957-08-20
Abstract: 853,972. Miner's safety lamps. SMITH, H. M. N. Nov. 12, 1958 [Aug. 20, 1957], No. 26199/57. Class 75(3). In a miner's flame safety lamp having an internal electric ignition device, the lamp top comprising the bonnet and lamp glass 20 is closed independently of the lamp base 24 by a closure 21 at or near its lower end, the ignition device being arranged above the closure, and a closed space for a source of electricity 27 for the ignition device is provided beneath the closure and above the top 23 of the lamp base.
Patent GB-278710-A (GB)
Title: Improvements relating to electric gas purifying plant
IPC: B03C3/66
Filed: 1927-10-04
Abstract: 278,710. Siemens Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). Oct. 5, 1926, [Convention date]. Drawings to Specification as open to inspection under Sect. 91 of the Acts. By solid unidirectional conducting devices. - High tension D.C. for supply to gas purifying plant is obtained from an A.C. source by means of a copper-copper oxide rectifier comprising copper plates having oxide coatings, a number of such elements being arranged in series according to the voltage of the supply. Reference has been directed by the Comptroller to Specifications 194,653 and 276,759.
Patent GB-297063-A (GB)
Title: Process for the treatment with liquids of artificial threads prepared from cellulose solutions
IPC: D06B5/16
Filed: 1928-09-13
Abstract: 297,063. Groves, W. W., (Herminghaus & Co. Ges.). Sept. 13, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 14, 1928]. Apparatus for making filaments. - Artificial threads prepared from cellulose solutions are treated with liquids subsequent to the initial washing on spinning bobbins and drying, for example desulphurized, in the case of viscose silk or freed from copper in the case of cuprammonium silk and then bleached, oiled, acidified, washed or dyed whilst they are wound in the twisted condition on porous bobbins or perforated bobbins provided with a porous covering, the treating liquid being slowly percolated through the fibres by means of slight pressure or combined pressure and suction pro duced by the column of liquid used in the treat ment. In the apparatus shown, the bobbins b are placed in the vessel a on sealing blocks c, fitted with tubes e, and are closed above with stoppers d, the base f of vessel a being removable in order to facilitate introduction of the bobbins. When the bobbins have been sealed, the vessel a is filled with the treating liquid to a height depending upon the pressure necessary to force the liquid slowly through the fibres into the interior of the bobbin, which pressure depends upon the gauge and tension of the wound fibres or alternatively tube e is connected with a second vessel containing the treating liquid, which is thus caused to percolate through the fibres from the interior of the bobbin. The liquid can also be drawn through the fibres by a small suction effect combined with the pressure treatment by prolonging the tube e in known manner to produce the suction effect by the flow of the liquid therein. Specification 268,783 (as open to inspection under Sect. 91 (3) (a)) is referred to.
Patent GB-298765-A (GB)
Title: Improvements in or relating to coal-cutting or like machines
IPC: E21C31/00
Filed: 1927-10-05
Abstract: 298,765. British Jeffrey-Diamond Ltd., (formerly Diamond Coal-Cutter Co., Ltd.), and Tinsley, H. Oct. 5, 1927. Coal-cutting machines.-In a coalcutting or like machine of the chain type in which the cutter jib is adapted to be swung about a stationary shaft which also supports the driving- sprocket of the cutter-chain, the stationary shaft is fixed at its upper end only in the top plate of the front end, or an extension, of the machine casing. The shaft 2, with a sleeve 21, is held by a nut 17 and locking-washer 18 and is secured against rotation by a key 19; a flange 15 engages a recess in the jib 7 to hold the latter, assisted by a ring 16 engaging the upper bifurcation 7<a> of the jib. The driving- sprocket 8 of the cutter-chain 9 has a sleeve 10 supported by roller bearings 11 and ball bearings 12, 13 and is driven through a sliding. clutch-sleeve by a train of gears 3, 4, 5, 6.
Patent GB-368693-A (GB)
Title: Improvements in overrunning friction clutches
IPC: F16D41/067
Filed: 1930-09-04
Abstract: 368,693. Friction ratchet gearing. AKTIEBOLAGET SPONTAN, 2, Norrmalmstorg, Stockholm. Sept. 4, 1930, No. 26433. Convention date, Sept. 5, 1929. Void [Published under Sect. 91 of the Acts]. [Class 80 (iii).] In friction ratchet gearing, particularly for motor-vehicle &c. variable-speed gears, local overloading and deformation of the parts (especially the controlling-cages), caused by displacement due to irregular creep of the gripping-rollers &c. in their inclined pockets during idle running, are avoided by shaping the pockets with increasing angles of convergence towards their narrow ends. Gripping- surfaces 15, 16, Figs. 4 and 5, on the outer or inner member 14, 13 (or on both members) are formed respectively by arcs of radius R<1> of less or greater length than the radial distances of the surfaces from the centre of the gear, and struck from centres offset from the radial centrelines of the pockets, the two arcs forming each pocket being joined by short arcs of radius R<2>. Fig. 10 shows a developed view of part of a controlling-cage 12 for the gripping-rollers 10, wherein springs 21, adapted to bear on one or other roller according to the direction of drive, are received at their ends in recesses 22, an auxiliary bowed leaf-spring 23 being inserted between each pair of springs 21 to take up play in the recesses 22 and ensure even contact with the rollers. The springs are located at a less radius than the cage bars (not shown). In a modification, Fig. 13, single springs 24 with contact-enlargements 25 are employed, these also lying within the cage bars 11. To provide sufficient rollers in small-diameter gears, a double cage, Fig. 14 (not shown), may be provided for two axially-spaced sets of rollers. The inner or outer gripping-surfaces are shaped by a grinding-wheel 17, Fig. 6, driven by means 18 and carried on an arm 19 contacting with a templet 20.
Patent GB-854738-A (GB)
Title: Improvements in or relating to apparatus for forming a continuous tobacco filler
IPC: A24C5/18
Filed: 1957-02-26
Abstract: The subject-matter of this Specification is identical with part of that described in Specification 854,736, but the claims are concerned with the delivery of the trimmed filler to the cigarette-paper web by carrying the filler suctionally on the underside of the perforated belt.  Specification 854,737 also is referred to.
Patent GB-266174-A (GB)
Abstract: 266,174. Perrem, F. C. May 11, 1926. Ignition sets. - A low-tension current interrupter, a high-tension current distributor, an induction coil and a vibrator are mounted on the one base 14. The core 16 of the coil is supported in insulation 15, and the rotary members of the interrupter and distributor are both secured to the shaft 3. The rotary member 4 of the interrupter consists of insulated segments one or more of which are earthed by a connection 5; brushes 2 mounted in an adjustable framing 6 bear on the segments and are connected to the vibrator 17 and induction coil. The distributor 8 is of the jump-spark type, current from the secondary winding being led to a finger 10 which moves past fixed terminals 11. Specification 165,998, [Class 38 (v), Electric switches &c.], is referred to.
Patent GB-785459-A (GB)
Title: Improvements in and relating to rubber springs or pads
IPC: B61F5/08
Filed: 1954-09-14
Abstract: 785,459. Rubber compression springs; railway vehicle undercarriages. MOULTON & CO., Ltd., G. S., and SPENCER, J. C. Dec. 14, 1955 [Sept. 14, 1954], No. 26622/54. Classes 103(6) and 108(3) A rubber spring comprises a rubber body 3 having a semi-circular shaped base bonded to a metal plate 1, the outer surface of the body 3 presenting a contour which is radiused on its three main axes so that under load a gradually increasing area is placed under compression. As applied to the stabilizing of the bolster 37 of a rail vehicle bogie under-frame 38, two plates 1 each carrying two bodies 3 are disposed in register with the frame 38 by means of dowels 7. Plates 12, 13 screwed to a tie-rod 15 transmit the load to the bodies 3 from a similar assembly of bodies 3<SP>1</SP> and plates 12<SP>1</SP>, 13<SP>1</SP> connecting the other end of the rod 15 to the bolster 37.
Patent GB-978802-A (GB)
Title: Improvements in and relating to reservoirs of writing and other dispensing instruments
Inventor: FEHLING HANS REINHARD
IPC: B43K7/02
Filed: 1960-07-30
Abstract: 978,802. Liquid applicators. I.R.C. Ltd. July 11, 1961 [July 30, 1960], No. 26624/60. Heading A5R. [Also in Divisions B2 and B6] A ball applicator is of the kind having a vented bore occupied by a liquid column sealed by means of a solid follower at one end of the column, the follower being an easy sliding fit in the bore so as to move along it as the liquid is discharged from the reservoir. As shown, the reservoir 10 is provided with a follower 12 having sealing liquid in the clearance around the follower, a spring 14 exerting on the follower a force which opposes movement of the follower along the reservoir bore as the liquid is discharged and increases with distance travelled by the follower, but is insufficient to eject the follower from the liquid. A discharge conduit 15 extends from the rear end of the reservoir bore in a direction opposite to the travel of the follower consequent upon liquid discharge. In a modification, Figs. 2-4 (not shown), the unit 17 is fitted in a casing 18, such that the discharge conduit lies in a groove of the casing. The tip part 15<SP>1</SP>a is bent in the manner described in Specification 978,801, such that the ball 19 is adjacent the longitudinal axis of the applicator. In another embodiment, a unit 22, Fig. 5, has a discharge conduit 15b arranged concentrically with the bore of the reservoir, the follower 12b being annular. A unit 23, Fig. 6 (not shown), has a metal ball 24 interposed between a follower 12c and spring 14c. The follower 12c is buoyant in the liquid such that it does not sink when ball 24 compresses spring 14c. A unit 25, Fig. 7, has a secondary follower 12<SP>1</SP>d slidably disposed in the bore beyond a follower 12d, the space 26 between the followers containing air or other gas. The follower 12<SP>1</SP>d may incorporate a reservoir 27 for sealing liquid as described in Specification 944,600. Specification 932,203 also is referred to.
Patent GB-444325-A (GB)
Title: Improvements in or relating to containers, more particularly for toilet, pharmaceutical and like preparations
IPC: A45D34/00
Filed: 1934-09-19
Abstract: 444,325. Bottles; cases; putting up surgical &c. appliances. LEHMANN, F., Firlands Court, Burgess Hill, Sussex. Sept. 19, 1934, Nos. 26895 and 29133. [Classes 18 and 125 (i)] [See also Group VI] A container for a number of toilet, pharmaceutical, &c. articles comprises a tubular member 1 open throughout and having an internal ledge 5. A closure 8 for one end is formed as a holder for a stick of solid material, and the other closure 3 serves also as a closure for a bottle, tube or roll seated upon the ledge 5.
Patent GB-763402-A (GB)
Title: Improvements in or relating to heat radiation devices
IPC: F24C3/04
Filed: 1954-09-16
Abstract: 763,402. Gaseous fuel heat radiators. SCHWANK, G. Sept. 16, 1954 [Feb. 2, 1954], No. 26926/54. Class 51 (1). A heat-radiating device having a plurality of burner bodies disposed adjacent each other in a horizontal plane in a housing having a downwardly directed skirt and adapted to be rendered glowing by the combustion of a fuel-air mixture is characterized by the provision of means to guide the fuel mixture and the waste gases resulting therefrom so that neither the ignited fuel mixture nor the waste gases will encounter pipes through which the fuel mixture is delivered or openings for the intake of secondary air for admixture with the fuel mixture. In the heating device shown, which is intended to radiate heat downwardly, a housing 1, Figs. 1, 2, is provided with an inwardly directed peripheral flange 1a which supports four burner bodies 8, sealing between adjacent bodies being accomplished by stays 7, which are also supported by the flange, when the bodies 8 and stays 7 are fixed in position by suitable clamping means. Each burner body is topped by a chamber 6 which is fed with a fuel and air mixture by a pipe 9 from a common manifold 4, each pipe 9 having secondary air inlet apertures. Dividing the bodies 8 into two pairs is a chamber 3 which communicates with a waste gas outlet 3a formed on its external surface with cooling fins 10. Depending from the housing is a reflector 5. Combustion products emanating from the lower surfaces of the bodies 8 pass to the chamber 3 and hence to the outlet 3a.